Ionia Weather Forecast

    • 59
    • 70

    Rain Showers Likely

    • 59
    • 76

    Chance Rain Showers

    • 62
    • 82

    Partly Sunny

    • 65
    • 84

    Mostly Cloudy

    • 63
    • 79

    Rain Showers Likely

    • 62
    • 78

    Chance Rain Showers

Today 29 Jul Ontario

Mostly cloudy. A chance of Showers this Morning, then a chance of Showers and Thunderstorms this afternoon. Cool with Highs around 70. Northwest Winds 5 to 10 Mph, increasing to 10 to 15 Mph. Chance of rain 50 percent.

Tonight 29 Jul Ontario

Cloudy. Showers likely in the Evening, then a chance of Showers overnight. Lows around 60. Northwest Winds 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ionia Temperature Statistics

July Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 23 July, 2026

    49.6 °F

  • Average July

    73 °F

  • Highest 1 July, 2026

    94.6 °F

Climate (2021–2026)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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